Henry bruck



(No Modeh) v H. BRUGK.

PERMUTATION LOOK.

No. 599,596. Patented Feb. 22, 1898.

" PAT NT OFFICE.

HENRY BRUCK, OF NEW YORK, N. Y.

PERM UTATlON-LOCK.

SPECIFICATION forming part of Letters Patent No. 599,596, dated February 22, 1 898. Application filed September 16, 1897. Serial No. 651,904. (No model.)"

To all whom it may concern:

Be it known that I, HENRY BRUCK,'a citizen of the United States, and a resident of New York, county and State of New York, have invented certain new and useful Improvements in Permutation-Locks, of which the following is a full, clear, and exact specification, reference being had to the accompanying drawings, Wherein Figure l is a sectional view of my improved permutation-lock. Fig. 2 is a similar view showing a lock with two series of tumblers. Fig. 3 is. a front view of the lock-plate and knobs for operating the tumblers. Fig. 4 is a top view of a series of tumbler-disks, showing them in open position; and Fig. 5 is an enlarged sectional view on line 5 5, indicated in Fig. 4.. Fig. 6 is an enlarged detail of the inside lock-plate.

My invention relates to looks; and it consists of the hereinafter-described construction of a permutation-lock and of the spring-bolt used in connection therewith.

The lock consists of one or more series .of rotary tumblers, designated in the drawings by letters a and Z), (and c and d in Fig. 2,) knobs a and b (and c and d in Fig. 2,) and of the bolt f, interlocking with the tumblers.

The tumblers are flanged disks integral with or mounted upon stud a and sleeves b, c, and d. Knobs a b 0 &c., are adjustably secured to stud a and to sleeves b 0,

ac. Bolt f is made in the shape of an arrow, with movable barbs 'i', as shown in enlarged detail in Fig. 5. The stems '5 of these barbs are pivoted in recess f provided in the head of the bolt and are connected by spring is, pressing the barbs apart and outwardly from the recess.

The tumblers are arranged with their flanges toward the bolt-hole Z, to engage the barbs c" of the bolt f, and are provided with notches h. (Shown in Fig. 4.) These notches permit of Withdrawing the bolt from the look when the tumblersare set in position, as shown in Fig. 4, and with the notches opposite to the bolt-hole l provided in top plate m of the look. If, however, one of the tumblers is not exactly in such position, then the corresponding barb z" of the bolt fwill stem itself against the flange of the tumbler and hold the bolt in. the lock.

The tumblers are operated by turning the knobs a 12 &c., as required by the combination. Stud a is rotatably mounted in the plate 9 of the lock. Sleeves b c, &c., are slid in successive order upon the stud a and one upon the other. Tumbler a is secured to (or integral with) the stud a, and tumblers b c, &c., with sleeves b, c, and d, respectively. The knobs 0?, b 0 and d are screwed on the outwardly-projecting ends of the stud a and of the sleeves b c, &c., re-

spectively, and in addition thereto are fixed to the sleeves in their position by keys to.

The knobs are provided with a number of key-seats, as shown in Fig. 3, and these keys fix the knobs upon the sleeves b c, &c., in exact position relatively to the notches h provided in the flange of the tumblers. By changing the position of the knobs b 0 &c., upon the sleeves b c, &c., the combination of the lock is changed. To determine this combination, the outside lock-plate o and the faces of knobs a 19 &c., are provided with graduations or other marks indicating their position relatively to the positions of the respective tumblers.

To increase the safety of the look, I affix inv the back of the wall at of the box, case, 850., the plate g' which is provided with a number of perforations 25, adapted to receive the pin r, affixed to the adjacent tumbler, (b in Fig. 1.) The perforations t in'the plate 9' are in the circular line describedby the pin r when the tumbler b is turned; butonly one of these perforations is exactly in position to receive the pin 1 when the notch in the flange of the tumbler is opposite to the bolt-hole. These perforations serve for securing the tumbler in any desired position.

The pin r enters one of the perforations t when the corresponding knob (19 is pulled to move the tumbler and will yield readily,

permitting the pin a to pass in either direction when the tumbler is turned.

Bolt f is preferably affixed to the lid n of the case, box, &c., for which the lock is used. It may, however, be made movable in the lid n, and in this case the bolt is equipped, as shown in Fig. 2, with a head and with a spring moving it upward.

The movable bolt is set in the casing affixed to lid it, its head f fitting snugly in the recess 3 Spring .epresses the bolt upwardly when released from the lock, and barbs i, stemming against the bottom of easing y, hold it in the lid. The operation of the lock is the same as described above, with the only difference that it is not necessary to lift the lid 71 when the lock is opened to withdraw the bolt. To look the case, box, &c., the bolt is pressed into its recess, whereby its head is driven into the hole Z and its barbs interlock with the flanges of the tumblers in the same manner as explained above when the lid 01- of the box is dropped.

It is not necessary to set the tumblers in position to dl'ltfl the bolt f into the lock, because its barbs i, being movable and having inclined faces, will recede when the bolt f is forced into the lock, thus allowing the bolt to pass in between the flanges of the tumblers and then slip automatically underneath the flanges when the bolt is fully driven into the look. This feature of my invention is of great importance for the use of my improved permutation-lock on drawers, cashboxes, show-cases, and the like as means of protection against thieves, because it enables the locking of the box or case almost instantaneously by simply slamming the lid upon it.

To protect the breaking of the lock with a chisel, I provide in connection with the lockplate 0 the rib q, projecting upward and e11- tering a corresponding recess q provided in the lid 01, and also extend the protective mounting p downward beyond the edge of the side wall of the box.

I claim as my invention and desire to secure by Letters Patent- 1. The combination with a lock, comprising a series of flanged tumblers, set on rotatable supports with their flanges opposite each other, and having corresponding notches in their flanges, knobs adj ustably secured to the outwardly projecting ends of the supports and provided with marks on their faces, of an arrow-shaped bolt, adapted to enter the lock and provided with spring-actuated movable barbs adapted to recede in the stem of the bolt when the same passes between the flanges of two oppositely-mounted tumblers and then interlocking with the flanges when the bolt is pushed beyond them.

2. The combination with a lock comprising rotary tumblers provided with corresponding notches in their flanges for releasing the bolt, of a plate secured in parallel position to and adjoining one of the tumblers, a pin set in the tumbler, a spring secured to the plate and engaging the pin set in the tumbler.

3. The combination with a lock, comprising rotary tumblers provided with corresponding notches in their flanges for releasing the bolt, of a pin set in one of the tumblers and a plate provided with perforations arranged in a line corresponding to the motion of the pin and adapted to receive the pin.

In witness that I claim the improvements described in the foregoing specification I have signed my name in the presence of two subscribing witnesses.

' HENRY BRUCK.

\Vitnesses:

HENRY SCHREITER, ROBERT VAN Innnsrmn. 

